diff --git a/requirements_developers.txt b/requirements_developers.txt
index d0d68a0a..cd0fe6ad 100644
--- a/requirements_developers.txt
+++ b/requirements_developers.txt
@@ -5,7 +5,7 @@ parameterized>=0.9.0
 Pygments>=2.16.1
 graphviz>=0.20.1
 click==8.1.7
-black==23.3.0
+black==24.3.0
 flake8>=5.0.4
 recommonmark==0.7.1
 sphinx_rtd_theme==1.3.0
diff --git a/src/blockwatch/tzpro_reward_provider_helper.py b/src/blockwatch/tzpro_reward_provider_helper.py
index 8f3c0e9c..9e1725e9 100644
--- a/src/blockwatch/tzpro_reward_provider_helper.py
+++ b/src/blockwatch/tzpro_reward_provider_helper.py
@@ -220,9 +220,9 @@ def get_rewards_for_cycle(self, cycle):
             for list_address in split_addresses:
                 list_curr_balances = self.fetch_current_balance(list_address)
                 for d in list_address:
-                    root["delegators_balances"][d][
-                        "current_balance"
-                    ] = list_curr_balances[d]
+                    root["delegators_balances"][d]["current_balance"] = (
+                        list_curr_balances[d]
+                    )
                     curr_bal_delegators.append(d)
 
         # All done fetching balances.
diff --git a/src/util/csv_calculation_file_parser.py b/src/util/csv_calculation_file_parser.py
index 97f32845..309fdacf 100644
--- a/src/util/csv_calculation_file_parser.py
+++ b/src/util/csv_calculation_file_parser.py
@@ -243,17 +243,23 @@ def write(
                         pymnt_log.amount,
                         pymnt_log.service_fee_amount,
                         pymnt_log.service_fee_rate,
-                        "pending"
-                        if early_payout
-                        else "{:d}".format(int(pymnt_log.overestimate)),
+                        (
+                            "pending"
+                            if early_payout
+                            else "{:d}".format(int(pymnt_log.overestimate))
+                        ),
                         pymnt_log.adjustment,
                         pymnt_log.adjusted_amount,
-                        "pending"
-                        if not fees_simulated
-                        else "{:d}".format(int(pymnt_log.delegate_transaction_fee)),
-                        "pending"
-                        if not fees_simulated
-                        else "{:d}".format(int(pymnt_log.delegator_transaction_fee)),
+                        (
+                            "pending"
+                            if not fees_simulated
+                            else "{:d}".format(int(pymnt_log.delegate_transaction_fee))
+                        ),
+                        (
+                            "pending"
+                            if not fees_simulated
+                            else "{:d}".format(int(pymnt_log.delegator_transaction_fee))
+                        ),
                         int(1) if pymnt_log.payable else int(0),
                         int(1) if pymnt_log.skipped else int(0),
                         pymnt_log.skippedatphase,